<template>
	<view class="goshop-help-container">
		<rich-text :nodes="helpData.content|formatRichText"></rich-text>	
	</view>
</template>

<script>
	import {articleInfo} from '@/common/http.api.js'
	import {isNotEmpty} from '@/utils/utils.js'
	export default {
		data() {
			return {
				id:'',
				helpData:{
					content:null,
				},
			};
		},
		filters: {
			/**
			 * 处理富文本里的图片宽度自适应
			 * 1.去掉img标签里的style、width、height属性
			 * 2.img标签添加style属性：max-width:100%;height:auto
			 * 3.修改所有style里的width属性为max-width:100%
			 * 4.去掉<br/>标签
			 * @param html
			 * @returns {void|string|*}
			 */
			formatRichText (html) {
				let newContent='';
				if(isNotEmpty(html)){
					newContent = html.replace(/<img[^>]*>/gi,function(match,capture){
						match = match.replace(/style="[^"]+"/gi, '').replace(/style='[^']+'/gi, '');
						match = match.replace(/width="[^"]+"/gi, '').replace(/width='[^']+'/gi, '');
						match = match.replace(/height="[^"]+"/gi, '').replace(/height='[^']+'/gi, '');
						return match;
					});
					newContent = newContent.replace(/style="[^"]+"/gi,function(match,capture){
						match = match.replace(/width:[^;]+;/gi, 'max-width:100%;').replace(/width:[^;]+;/gi, 'max-width:100%;');
						return match;
					});
					newContent = newContent.replace(/<br[^>]*\/>/gi, '');
					newContent = newContent.replace(/\<img/gi, '<img style="max-width:100%;height:auto;display:inline-block;margin:10rpx auto;"');
				}
				return newContent;
			}	
		},
		async onLoad(e){
			this.id = e.id;
			await this.getArticleInfo();
		},
		methods:{
			getArticleInfo(){
				articleInfo({params: {id: this.id}}).then(res => {
					if (res.code === 0) {
						this.helpData = res.data;
						uni.setNavigationBarTitle({
						　　title:this.helpData.title
						})
					} else {
						uni.hideLoading();
						this.$refs.uToast.show({
							message: res.msg,
							type: 'error',
						})
					}
				});
			}
		}
	}
</script>

<style lang="scss">
.goshop-help-container{
	
}
</style>
